Astm d 5036 99 (2005)

Designation D 5036 – 99 (Reapproved 2005) Standard Practice for Application of Adhered Poly(Vinyl Chloride) Sheet Roofing1 This standard is issued under the fixed designation D 5036; the number immedi[.]

Standard Practice for

This standard is issued under the fixed designation D 5036; the number immediately following the designation indicates the year of

original adoption or, in the case of revision, the year of last revision A number in parentheses indicates the year of last reapproval A

superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1 Scope

1.1 This practice covers the minimum requirements for the

installation of adhered poly(vinyl chloride) roofing

1.2 For the purpose of this application practice, the structure

and deck are assumed to be mechanically sound, able to accept

the weight of the membrane and other roofing system

materi-als, comply with local building codes, and other roofing

requirements The insulation layer(s) and vapor retarder, if

specified, are assumed to be in place, secured, and acceptable

for use with the membrane and bonding adhesive

1.3 This standard does not purport to address all of the

safety concerns, if any, associated with its use It is the

responsibility of the user of this standard to establish

appro-priate safety and health practices and determine the

applica-bility of regulatory limitations prior to use For specific hazard

statements, see Section5

2 Referenced Documents

2.1 ASTM Standards:2

D 312 Specification for Asphalt Used in Roofing

D 1079 Terminology Relating to Roofing, Waterproofing,

and Bituminous Materials

D 4434 Specification for Poly(Vinyl Chloride) Sheet

Roof-ing

3 Delivery of Materials

3.1 Deliver materials in supplier’s unopened containers and

packages

4 Storage and Handling of Materials

4.1 Elevate stored materials and under protective covering

Roll goods shall be stored in a horizontal position, and in a

manner that prevents the supplier’s markings from being

destroyed

4.2 Store non-asphaltic adhesives in original tightly closed

containers at temperatures between 5 and 30°C (40 and 85°F)

Short term excursions beyond these temperatures may be allowable (for example, overnight, or during periods of inclem-ent weather) Emulsion type adhesives shall not be allowed to freeze

4.3 Do not exceed the labeled shelf life

4.4 Store solvents in proper containers to prevent dilution or contamination, or both

4.5 Store flammable materials in original closed containers away from any ignition source

4.6 Store asphalt in original containers

4.7 Consult membrane manufacturer/supplier for additional direction

5 Safety Hazards

5.1 Store flammable materials in a manner that will not pose

a fire hazard

5.2 Shut down roof top air handling equipment and air intakes in the work area to reduce odors from entering the building

6 Environmental Conditions

6.1 Install roofing components during weather conditions that do not interfere with adhesion, pliability, or workability 6.1.1 Do not attempt bonding in conditions such as dew, fog, rain, snow, or when frost occurs on the surfaces of either the membrane, bonding/solvent adhesive, or when the ambient air temperature is below 5°C (40°F) or above 50°C (122°F) 6.1.2 Do not use emulsion adhesives if the ambient air temperature is expected to drop below 5°C (40°F) within 24 h after bonding the sheet

6.2 Installation outside of these conditions require special conditions beyond the scope of this practice

6.3 Wind may cause difficult working conditions Tempo-rary ballasting of roofing sheets may be required Work surfaces must be protected from windblown dirt and debris

7 Materials Definitions

7.1 Poly(Vinyl Chloride) Sheet Roofing—Roofing material

that meets the requirements of Specification D 4434

7.2 Bonding Adhesive—Provide adhesive, supplied or

ap-proved by the membrane manufacturer, to develop a bond between the membrane and the substrate to which the mem-brane is to be attached Adhesive may be of three types: solvent-based bonding adhesive, water-based adhesive, or asphalt

1 This practice is under the jurisdiction of ASTM Committee D08 on Roofing and

Waterproofing and is the direct responsibility of Subcommittee D08.18 on

Nonbi-tuminous Organic Roof Coverings.

Current edition approved Dec 1, 2005 Published December 2005 Originally

approved in 1990 Last previous edition approved in 1999 as D 5036 – 99.

2

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7.3 Lap Seam Sealant—When required, provide a

compat-ible sealant that will be applied to the exposed edge of the

seam

8 Substrate Preparation

8.1 Surfaces to receive sheets shall be sufficiently free of

contaminants such as dirt, debris, loose materials, and visible

moisture Remove sharp objects that could damage the roofing

8.2 All gaps and joints between substrate components in

excess of1⁄4in shall be filled with like materials

9 Installation

9.1 If required by the contract, submit shop drawings to the

awarding authority for review and approval Install sheets in

accordance with the approved drawings

9.2 Use care not to damage materials when handling

Distribute materials in such a manner that the roof deck is not

overloaded.3

9.2.1 Use care and diligence during installation to avoid

damaging the substrate

9.2.2 It is good practice to start the sheet installation at the

high point of the roof and work to the lowest point to avoid the

possibility of water penetrating under the completed roof

system

9.2.3 Orient field seams with sheet overlaps to shed water or

be parallel to the direction of water flow when possible

9.3 Do not puncture, fracture, or delaminate the substrate to

which the roofing is to be bonded Damaged substrate areas

must be replaced

9.4 Unroll the roofing materials If any defects are seen,

repair or remove defective or damaged roofing from the site

9.5 Application Using Solvent-Based Bonding Adhesive:

9.5.1 Align the sheet in its proper location and overlap the

adjacent sheet a minimum of 51 mm (2 in.) Fold the sheet in

half, either widthwise or lengthwise, to create a rounded fold in

the sheet

9.5.2 If required by the adhesive manufacturer/supplier, stir

adhesive until uniform and apply solvent-based bonding

adhe-sive to the substrate at the recommended rate Allow the

adhesive to dry so that it shall not string or stick to the finger

when touched

9.5.3 Apply solvent-based bonding adhesive to the back of

the sheet at the manufacturer’s recommended rate Allow the

adhesive to become tacky as evidenced by strings of adhesive

forming when lightly touched Keep adhesive out of overlap

areas

9.5.4 Carefully roll the adhesive coated sheet onto the

prepared substrate, maintaining a rounded leading edge in a

manner that minimizes voids and wrinkles Keep the sheet

even and continue rolling until the sheet is laid flat

9.5.5 Fold back the unbonded portion of the sheet and

expose the second half Then, repeat the operation described in

9.5.2and9.5.4

9.5.6 After the sheet is in place, apply pressure to promote

bonding between the membrane and the substrate Use a

weighted roller to promote maximum adhesion

9.6 Application Using Water-Based Bonding Adhesive:

9.6.1 Align the sheet in its proper location and overlap the adjacent sheet a minimum of 51 mm (2 in.) Fold the sheet in half, either widthwise or lengthwise, to create a rounded fold in the sheet

9.6.2 If required by the manufacturer/supplier, stir adhesive until uniform and apply water-based adhesive to the substrate

at the recommended rate Roll sheet onto adhesive immedi-ately Do not allow formation of a film on the surface of the adhesive to occur Keep adhesive out of overlap areas 9.6.3 Continue rolling sheet into wet adhesive until roll has been set into adhesive Keep the sheet even to maintain a minimum of 51 mm (2 in.) overlap of adjacent sheet 9.6.4 Return to the beginning of the roll and fold back the unbonded section Repeat the procedure specified in9.6.2and

9.6.3to complete adhesion of entire roll of sheet membrane 9.6.5 After the sheet is in place, apply pressure to promote bonding between the membrane and substrate Use a weighted roller to promote maximum adhesion Apply pressure working away from overlap area to prevent displacement of adhesive into lap area

9.7 Application Using Specification D 312 Type III Asphalt

as the Adhesive:4 9.7.1 For slopes grater than 3:12, use Type IV Asphalt 9.7.2 If required by the membrane manufacturer, prime the substrate with asphalt primer at the recommended rate 9.7.3 Align the sheet in its proper location and overlap the adjacent sheet a minimum of 51 mm (2 in.)

9.7.4 Apply the asphalt within the EVT application range as defined in D 1079 Carefully roll the sheet into the asphalt Keep overlap areas free of asphalt

9.7.5 Keep the sheet even to maintain the 51 mm (2 in.) overlap of the adjacent sheet, while continuing to roll the sheet into the hot asphalt

9.7.6 Apply pressure as the sheet is rolled into place to promote bonding between the membrane and substrate Use a broom or squeegee to promote maximum adhesion Apply pressure working away from overlap areas to prevent displace-ment of asphalt into lap area

9.8 Hot Air Welding of Lap Areas:

9.8.1 Visually inspect the overlap areas to determine that they are sufficiently free of contaminants such as dirt, debris, adhesives, and loose materials If found, remove such materials according to manufacturer’s/supplier’s specification

9.8.2 Insert the hot air nozzle and draw between the overlapping membranes while applying pressure Fusion of the two mating surfaces shall occur immediately following the heating process

9.8.3 Check the outside edge of the seam with a blunted metal probe along the edge of the welded lap area The welded lap shall be visually free of any voids, fishmouths, or wrinkles, and shall lay flat

9.8.4 If required by the membrane manufacturer, apply a continuous bead of lap sealant along all lap connections before the end of each workday

3 Consult designer of record for maximum localized load 4 Membrane material must be specifically designed for this application.

10 Keywords

10.1 adhered; bonding adhesive; hot-air welding;

mem-brane; poly(vinyl chloride); roofing; single-ply

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